Chemical Review and Letters

Preparation and Application of Loess-based Adsorbent for the Removal of Lead ions from Aqueous Solution

Document Type : Research Article

Author

Tehmina Bano

Chang’an University Shaanxi, Xi’an China

https://doi.org/10.22034/crl.2024.487321.1468
Abstract
Loess is a naturally occurring mineral particle that is widely dispersed around the planet. It is also affordable, non-toxic, and readily accessible. A loess clay-based co-polymer, KHLC/PAA, was produced to support the functional monomer acrylic acid in an in situ polymerization process using N-N methylene bisacrylamide as a cross-linking agent. It was characterized by Scanning Electron Microscopy, Fourier Transformation Infrared spectroscopy, X-ray diffractometry, X-ray fluorescence spectroscopy, and thermal gravimetric analysis, followed by the examination of its adsorption capability for removing lead ions (Pb2+) from aqueous solution at room temperature in 60 minutes, which appeared to be 159.1 mg/g. The thermodynamic data showed that the adsorption process was practicable, spontaneous, and endothermic, and the experimental results suited the pseudo-second-order kinetic model and the Langmuir adsorption isotherm well. Consequently, KHLC/PAA is a potentially beneficial material for wastewater treatment as it is an inexpensive, environment-friendly adsorbent.

Graphical Abstract

Preparation and Application of Loess-based Adsorbent for the Removal of Lead ions from Aqueous Solution

Keywords

In situ polymerization
loess
adsorption
lead ions
wastewater

Subjects

Chemical Review and Letters
Volume 8, Issue 1 - Serial Number 1
Winter 2025
Pages 84-100

  • Receive Date 05 November 2024
  • Revise Date 28 November 2024
  • Accept Date 29 November 2024

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